Vehicle base train turn-around line arrangement structure and construction method thereof

The invention relates to the technical field of urban rail transit, in particular to a vehicle base train turn-around line arrangement structure and a construction method thereof. The overhead bridge is arranged in the upper space of the throat area of the vehicle base to serve as a connecting line to connect the parking lot lines on the two sides for turning around and steering, the turning-around line is arranged in the vehicle base where a splayed line rail connection mode cannot be set, the purpose of train reversing is achieved, and the problem of eccentric wear of vehicle rims can be effectively relieved; meanwhile, the problems of land increase, inconvenience in use of the level crossing, site splitting and the like are avoided, and the site selection difficulty is reduced. 本发明涉及城市轨道交通技术领域，具体涉及一种车辆基地列车调头线布置结构及其施工方法。本发明通过在车辆基地咽喉区的上部空间设置架空桥梁以作为联络线连接两侧的车场线路进行调头转向，在无法设置八字线接轨方式的车辆基地内实现布置调头线解决列车换向目的，可以有效缓解车辆轮缘偏磨问题，同时避免了用地增加、平交道口使用不便、场地割裂等问题，降低了选址难度。